典型文献
Vibration-induced nanoscale friction modulation on piezoelectric materials
文献摘要：
Mechanical vibration,as an alternative of application of solid/liquid lubricants,has been an effective means to modulate friction at the macroscale.Recently,atomic force microscopy(AFM)experiments and model simulations also suggest a similar vibration-induced friction reduction effect for nanoscale contact interfaces,although an additional external vibration source is typically needed to excite the system.Here,by introducing a piezoelectric thin film along the contact interface,we demonstrate that friction measured by a conductive AFM probe can be significantly reduced(more than 70％)when an alternating current(AC)voltage is applied.Such real-time friction modulation is achieved owing to the localized nanoscale vibration originating from the intrinsic inverse piezoelectric effect,and is applicable for various material combinations.Assisted by analysis with the Prandtl-Tomlinson(P-T)friction model,our experimental results suggest that there exists an approximately linear correlation between the vibrational amplitude and the relative factor for perturbation of sliding energy corrugation.This work offers a viable strategy for realizing active friction modulation for small-scale interfaces without the need of additional vibration source or global excitation that may adversely impact device functionalities.
文献关键词：
中图分类号：
作者姓名：
Jiawei CAO;Qunyang LI
作者机构：
Applied Mechanics Laboratory,Department of Engineering Mechanics,Tsinghua University,Beijing 100084,China;State Key Laboratory of Tribology,Tsinghua University,Beijing 100084,China
文献出处：
引用格式：
[1]Jiawei CAO;Qunyang LI-.Vibration-induced nanoscale friction modulation on piezoelectric materials)[J].摩擦（英文）,2022(10):1650-1659
A类：
Tomlinson
B类：
Vibration,induced,nanoscale,friction,modulation,piezoelectric,materials,Mechanical,alternative,application,solid,liquid,lubricants,has,been,effective,means,modulate,macroscale,Recently,atomic,force,microscopy,AFM,experiments,model,simulations,also,suggest,similar,reduction,contact,interfaces,although,additional,external,source,typically,needed,excite,system,Here,by,introducing,thin,film,along,demonstrate,that,measured,conductive,probe,significantly,reduced,more,than,when,alternating,current,AC,voltage,applied,Such,achieved,owing,localized,originating,from,intrinsic,inverse,applicable,various,combinations,Assisted,analysis,Prandtl,experimental,results,there,exists,approximately,linear,correlation,between,vibrational,amplitude,relative,perturbation,sliding,energy,corrugation,This,work,offers,viable,strategy,realizing,active,small,without,global,excitation,may,adversely,impact,device,functionalities
AB值：
0.627513
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机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
